diff options
Diffstat (limited to 'xorg-server/hw/xfree86/common/xf86Bus.c')
| -rw-r--r-- | xorg-server/hw/xfree86/common/xf86Bus.c | 1366 |
1 files changed, 683 insertions, 683 deletions
diff --git a/xorg-server/hw/xfree86/common/xf86Bus.c b/xorg-server/hw/xfree86/common/xf86Bus.c index 9d243c172..5c1668644 100644 --- a/xorg-server/hw/xfree86/common/xf86Bus.c +++ b/xorg-server/hw/xfree86/common/xf86Bus.c @@ -1,683 +1,683 @@ -/* - * Copyright (c) 1997-2003 by The XFree86 Project, Inc. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - * OTHER DEALINGS IN THE SOFTWARE. - * - * Except as contained in this notice, the name of the copyright holder(s) - * and author(s) shall not be used in advertising or otherwise to promote - * the sale, use or other dealings in this Software without prior written - * authorization from the copyright holder(s) and author(s). - */ - -/* - * This file contains the interfaces to the bus-specific code - */ - -#ifdef HAVE_XORG_CONFIG_H -#include <xorg-config.h> -#endif - -#include <ctype.h> -#include <stdlib.h> -#include <unistd.h> -#include <X11/X.h> -#include "os.h" -#include "xf86.h" -#include "xf86Priv.h" - -/* Bus-specific headers */ - -#include "xf86Bus.h" - -#define XF86_OS_PRIVS -#include "xf86_OSproc.h" -#include "xf86VGAarbiter.h" - -#include "Pci.h" - -/* Entity data */ -EntityPtr *xf86Entities = NULL; /* Bus slots claimed by drivers */ -int xf86NumEntities = 0; -static int xf86EntityPrivateCount = 0; - -BusRec primaryBus = { BUS_NONE, { 0 } }; - -static Bool xf86ResAccessEnter = FALSE; - -static Bool doFramebufferMode = FALSE; - -/* - * Call the bus probes relevant to the architecture. - * - * The only one available so far is for PCI and SBUS. - */ - -void -xf86BusProbe(void) -{ - xf86PciProbe(); -#if (defined(__sparc__) || defined(__sparc)) && !defined(__OpenBSD__) - xf86SbusProbe(); -#endif -} - -/* - * Determine what bus type the busID string represents. The start of the - * bus-dependent part of the string is returned as retID. - */ - -BusType -StringToBusType(const char* busID, const char **retID) -{ - char *p, *s; - BusType ret = BUS_NONE; - - /* If no type field, Default to PCI */ - if (isdigit(busID[0])) { - if (retID) - *retID = busID; - return BUS_PCI; - } - - s = xstrdup(busID); - p = strtok(s, ":"); - if (p == NULL || *p == 0) { - xfree(s); - return BUS_NONE; - } - if (!xf86NameCmp(p, "pci") || !xf86NameCmp(p, "agp")) - ret = BUS_PCI; - if (!xf86NameCmp(p, "sbus")) - ret = BUS_SBUS; - if (ret != BUS_NONE) - if (retID) - *retID = busID + strlen(p) + 1; - xfree(s); - return ret; -} - -/* - * Entity related code. - */ - -void -xf86EntityInit(void) -{ - int i; - - for (i = 0; i < xf86NumEntities; i++) - if (xf86Entities[i]->entityInit) { - xf86Entities[i]->entityInit(i,xf86Entities[i]->private); - } -} - -int -xf86AllocateEntity(void) -{ - xf86NumEntities++; - xf86Entities = xnfrealloc(xf86Entities, - sizeof(EntityPtr) * xf86NumEntities); - xf86Entities[xf86NumEntities - 1] = xnfcalloc(1,sizeof(EntityRec)); - xf86Entities[xf86NumEntities - 1]->entityPrivates = - xnfcalloc(sizeof(DevUnion) * xf86EntityPrivateCount, 1); - return (xf86NumEntities - 1); -} - -static void -EntityEnter(void) -{ - int i; - - for (i = 0; i < xf86NumEntities; i++) - if (xf86Entities[i]->entityEnter) { - xf86Entities[i]->entityEnter(i,xf86Entities[i]->private); - } -} - -static void -EntityLeave(void) -{ - int i; - - for (i = 0; i < xf86NumEntities; i++) - if (xf86Entities[i]->entityLeave) { - xf86Entities[i]->entityLeave(i,xf86Entities[i]->private); - } -} - -Bool -xf86IsEntityPrimary(int entityIndex) -{ - EntityPtr pEnt = xf86Entities[entityIndex]; - - if (primaryBus.type != pEnt->bus.type) return FALSE; - - switch (pEnt->bus.type) { - case BUS_PCI: - return (pEnt->bus.id.pci == primaryBus.id.pci); - case BUS_SBUS: - return (pEnt->bus.id.sbus.fbNum == primaryBus.id.sbus.fbNum); - default: - return FALSE; - } -} - -Bool -xf86SetEntityFuncs(int entityIndex, EntityProc init, EntityProc enter, - EntityProc leave, pointer private) -{ - if (entityIndex >= xf86NumEntities) - return FALSE; - xf86Entities[entityIndex]->entityInit = init; - xf86Entities[entityIndex]->entityEnter = enter; - xf86Entities[entityIndex]->entityLeave = leave; - xf86Entities[entityIndex]->private = private; - return TRUE; -} - -Bool -xf86DriverHasEntities(DriverPtr drvp) -{ - int i; - for (i = 0; i < xf86NumEntities; i++) { - if (xf86Entities[i]->driver == drvp) - return TRUE; - } - return FALSE; -} - -void -xf86AddEntityToScreen(ScrnInfoPtr pScrn, int entityIndex) -{ - if (entityIndex == -1) - return; - if (xf86Entities[entityIndex]->inUse && - !(xf86Entities[entityIndex]->entityProp & IS_SHARED_ACCEL)) { - ErrorF("Requested Entity already in use!\n"); - return; - } - - pScrn->numEntities++; - pScrn->entityList = xnfrealloc(pScrn->entityList, - pScrn->numEntities * sizeof(int)); - pScrn->entityList[pScrn->numEntities - 1] = entityIndex; - xf86Entities[entityIndex]->inUse = TRUE; - pScrn->entityInstanceList = xnfrealloc(pScrn->entityInstanceList, - pScrn->numEntities * sizeof(int)); - pScrn->entityInstanceList[pScrn->numEntities - 1] = 0; - pScrn->domainIOBase = xf86Entities[entityIndex]->domainIO; -} - -void -xf86SetEntityInstanceForScreen(ScrnInfoPtr pScrn, int entityIndex, int instance) -{ - int i; - - if (entityIndex == -1 || entityIndex >= xf86NumEntities) - return; - - for (i = 0; i < pScrn->numEntities; i++) { - if (pScrn->entityList[i] == entityIndex) { - pScrn->entityInstanceList[i] = instance; - break; - } - } -} - -/* - * XXX This needs to be updated for the case where a single entity may have - * instances associated with more than one screen. - */ -ScrnInfoPtr -xf86FindScreenForEntity(int entityIndex) -{ - int i,j; - - if (entityIndex == -1) return NULL; - - if (xf86Screens) { - for (i = 0; i < xf86NumScreens; i++) { - for (j = 0; j < xf86Screens[i]->numEntities; j++) { - if ( xf86Screens[i]->entityList[j] == entityIndex ) - return (xf86Screens[i]); - } - } - } - return NULL; -} - -void -xf86RemoveEntityFromScreen(ScrnInfoPtr pScrn, int entityIndex) -{ - int i; - - for (i = 0; i < pScrn->numEntities; i++) { - if (pScrn->entityList[i] == entityIndex) { - for (i++; i < pScrn->numEntities; i++) - pScrn->entityList[i-1] = pScrn->entityList[i]; - pScrn->numEntities--; - xf86Entities[entityIndex]->inUse = FALSE; - break; - } - } -} - -/* - * xf86ClearEntitiesForScreen() - called when a screen is deleted - * to mark it's entities unused. Called by xf86DeleteScreen(). - */ -void -xf86ClearEntityListForScreen(int scrnIndex) -{ - ScrnInfoPtr pScrn = xf86Screens[scrnIndex]; - int i, entityIndex; - - if (pScrn->entityList == NULL || pScrn->numEntities == 0) return; - - for (i = 0; i < pScrn->numEntities; i++) { - entityIndex = pScrn->entityList[i]; - xf86Entities[entityIndex]->inUse = FALSE; - /* disable resource: call the disable function */ - } - xfree(pScrn->entityList); - xfree(pScrn->entityInstanceList); - pScrn->entityList = NULL; - pScrn->entityInstanceList = NULL; -} - -/* - * Add an extra device section (GDevPtr) to an entity. - */ - -void -xf86AddDevToEntity(int entityIndex, GDevPtr dev) -{ - EntityPtr pEnt; - - if (entityIndex >= xf86NumEntities) - return; - - pEnt = xf86Entities[entityIndex]; - pEnt->numInstances++; - pEnt->devices = xnfrealloc(pEnt->devices, - pEnt->numInstances * sizeof(GDevPtr)); - pEnt->devices[pEnt->numInstances - 1] = dev; - dev->claimed = TRUE; -} - -/* - * xf86GetEntityInfo() -- This function hands information from the - * EntityRec struct to the drivers. The EntityRec structure itself - * remains invisible to the driver. - */ -EntityInfoPtr -xf86GetEntityInfo(int entityIndex) -{ - EntityInfoPtr pEnt; - int i; - - if (entityIndex == -1) - return NULL; - - if (entityIndex >= xf86NumEntities) - return NULL; - - pEnt = xnfcalloc(1,sizeof(EntityInfoRec)); - pEnt->index = entityIndex; - pEnt->location = xf86Entities[entityIndex]->bus; - pEnt->active = xf86Entities[entityIndex]->active; - pEnt->chipset = xf86Entities[entityIndex]->chipset; - pEnt->driver = xf86Entities[entityIndex]->driver; - if ( (xf86Entities[entityIndex]->devices) && - (xf86Entities[entityIndex]->devices[0]) ) { - for (i = 0; i < xf86Entities[entityIndex]->numInstances; i++) - if (xf86Entities[entityIndex]->devices[i]->screen == 0) - break; - pEnt->device = xf86Entities[entityIndex]->devices[i]; - } else - pEnt->device = NULL; - - return pEnt; -} - -int -xf86GetNumEntityInstances(int entityIndex) -{ - if (entityIndex >= xf86NumEntities) - return -1; - - return xf86Entities[entityIndex]->numInstances; -} - -GDevPtr -xf86GetDevFromEntity(int entityIndex, int instance) -{ - int i; - - /* We might not use AddDevtoEntity */ - if ( (!xf86Entities[entityIndex]->devices) || - (!xf86Entities[entityIndex]->devices[0]) ) - return NULL; - - if (entityIndex >= xf86NumEntities || - instance >= xf86Entities[entityIndex]->numInstances) - return NULL; - - for (i = 0; i < xf86Entities[entityIndex]->numInstances; i++) - if (xf86Entities[entityIndex]->devices[i]->screen == instance) - break; - return xf86Entities[entityIndex]->devices[i]; -} - -/* - * xf86AccessInit() - set up everything needed for access control - * called only once on first server generation. - */ -void -xf86AccessInit(void) -{ - xf86ResAccessEnter = TRUE; -} - -/* - * xf86AccessEnter() -- gets called to save the text mode VGA IO - * resources when reentering the server after a VT switch. - */ -void -xf86AccessEnter(void) -{ - if (xf86ResAccessEnter) - return; - - /* - * on enter we simply disable routing of special resources - * to any bus and let the RAC code to "open" the right bridges. - */ - EntityEnter(); - xf86EnterServerState(SETUP); - xf86ResAccessEnter = TRUE; -} - -/* - * xf86AccessLeave() -- prepares access for and calls the - * entityLeave() functions. - * xf86AccessLeaveState() --- gets called to restore the - * access to the VGA IO resources when switching VT or on - * server exit. - * This was split to call xf86AccessLeaveState() from - * ddxGiveUp(). - */ -void -xf86AccessLeave(void) -{ - if (!xf86ResAccessEnter) - return; - EntityLeave(); -} - -/* - * xf86EnableAccess() -- enable access to controlled resources. - * To reduce latency when switching access the ScrnInfoRec has - * a linked list of the EntityAccPtr of all screen entities. - */ -/* - * switching access needs to be done in te following oder: - * disable - * 1. disable old entity - * 2. reroute bus - * 3. enable new entity - * Otherwise resources needed for access control might be shadowed - * by other resources! - */ - -void -xf86EnableAccess(ScrnInfoPtr pScrn) -{ - DebugF("Enable access %i\n",pScrn->scrnIndex); - - return; -} - -/* - * xf86EnterServerState() -- set state the server is in. - */ - -typedef enum { TRI_UNSET, TRI_TRUE, TRI_FALSE } TriState; - -static void -SetSIGIOForState(xf86State state) -{ - static int sigio_state; - static TriState sigio_blocked = TRI_UNSET; - - if ((state == SETUP) && (sigio_blocked != TRI_TRUE)) { - sigio_state = xf86BlockSIGIO(); - sigio_blocked = TRI_TRUE; - } else if ((state == OPERATING) && (sigio_blocked != TRI_UNSET)) { - xf86UnblockSIGIO(sigio_state); - sigio_blocked = TRI_FALSE; - } -} - -void -xf86EnterServerState(xf86State state) -{ - /* - * This is a good place to block SIGIO during SETUP state. - * SIGIO should be blocked in SETUP state otherwise (u)sleep() - * might get interrupted early. - * We take care not to call xf86BlockSIGIO() twice. - */ - SetSIGIOForState(state); - if (state == SETUP) - DebugF("Entering SETUP state\n"); - else - DebugF("Entering OPERATING state\n"); - - return; -} - -/* - * xf86PostProbe() -- Allocate all non conflicting resources - * This function gets called by xf86Init(). - */ -void -xf86PostProbe(void) -{ - if (fbSlotClaimed) { - if (pciSlotClaimed -#if (defined(__sparc__) || defined(__sparc)) && !defined(__OpenBSD__) - || sbusSlotClaimed -#endif - ) { - FatalError("Cannot run in framebuffer mode. Please specify busIDs " - " for all framebuffer devices\n"); - return; - } else { - xf86Msg(X_INFO,"Running in FRAMEBUFFER Mode\n"); - doFramebufferMode = TRUE; - - return; - } - } -} - -void -xf86PostScreenInit(void) -{ - if (doFramebufferMode) { - SetSIGIOForState(OPERATING); - return; - } - - xf86VGAarbiterWrapFunctions(); - - DebugF("PostScreenInit generation: %i\n",serverGeneration); - xf86EnterServerState(OPERATING); -} - -/* - * xf86FindPrimaryDevice() - Find the display device which - * was active when the server was started. - */ -void -xf86FindPrimaryDevice(void) -{ - if (primaryBus.type != BUS_NONE) { - char *bus; - char loc[16]; - - switch (primaryBus.type) { - case BUS_PCI: - bus = "PCI"; - snprintf(loc, sizeof(loc), " %2.2x@%2.2x:%2.2x:%1.1x", - primaryBus.id.pci->bus, - primaryBus.id.pci->domain, - primaryBus.id.pci->dev, - primaryBus.id.pci->func); - break; - case BUS_SBUS: - bus = "SBUS"; - snprintf(loc, sizeof(loc), " %2.2x", primaryBus.id.sbus.fbNum); - break; - default: - bus = ""; - loc[0] = '\0'; - } - - xf86MsgVerb(X_INFO, 2, "Primary Device is: %s%s\n",bus,loc); - } -} - -int -xf86GetLastScrnFlag(int entityIndex) -{ - if(entityIndex < xf86NumEntities) { - return(xf86Entities[entityIndex]->lastScrnFlag); - } else { - return -1; - } -} - -void -xf86SetLastScrnFlag(int entityIndex, int scrnIndex) -{ - if(entityIndex < xf86NumEntities) { - xf86Entities[entityIndex]->lastScrnFlag = scrnIndex; - } -} - -Bool -xf86IsEntityShared(int entityIndex) -{ - if(entityIndex < xf86NumEntities) { - if(xf86Entities[entityIndex]->entityProp & IS_SHARED_ACCEL) { - return TRUE; - } - } - return FALSE; -} - -void -xf86SetEntityShared(int entityIndex) -{ - if(entityIndex < xf86NumEntities) { - xf86Entities[entityIndex]->entityProp |= IS_SHARED_ACCEL; - } -} - -Bool -xf86IsEntitySharable(int entityIndex) -{ - if(entityIndex < xf86NumEntities) { - if(xf86Entities[entityIndex]->entityProp & ACCEL_IS_SHARABLE) { - return TRUE; - } - } - return FALSE; -} - -void -xf86SetEntitySharable(int entityIndex) -{ - if(entityIndex < xf86NumEntities) { - xf86Entities[entityIndex]->entityProp |= ACCEL_IS_SHARABLE; - } -} - -Bool -xf86IsPrimInitDone(int entityIndex) -{ - if(entityIndex < xf86NumEntities) { - if(xf86Entities[entityIndex]->entityProp & SA_PRIM_INIT_DONE) { - return TRUE; - } - } - return FALSE; -} - -void -xf86SetPrimInitDone(int entityIndex) -{ - if(entityIndex < xf86NumEntities) { - xf86Entities[entityIndex]->entityProp |= SA_PRIM_INIT_DONE; - } -} - -void -xf86ClearPrimInitDone(int entityIndex) -{ - if(entityIndex < xf86NumEntities) { - xf86Entities[entityIndex]->entityProp &= ~SA_PRIM_INIT_DONE; - } -} - - -/* - * Allocate a private in the entities. - */ - -int -xf86AllocateEntityPrivateIndex(void) -{ - int idx, i; - EntityPtr pEnt; - DevUnion *nprivs; - - idx = xf86EntityPrivateCount++; - for (i = 0; i < xf86NumEntities; i++) { - pEnt = xf86Entities[i]; - nprivs = xnfrealloc(pEnt->entityPrivates, - xf86EntityPrivateCount * sizeof(DevUnion)); - /* Zero the new private */ - bzero(&nprivs[idx], sizeof(DevUnion)); - pEnt->entityPrivates = nprivs; - } - return idx; -} - -DevUnion * -xf86GetEntityPrivate(int entityIndex, int privIndex) -{ - if (entityIndex >= xf86NumEntities || privIndex >= xf86EntityPrivateCount) - return NULL; - - return &(xf86Entities[entityIndex]->entityPrivates[privIndex]); -} - +/*
+ * Copyright (c) 1997-2003 by The XFree86 Project, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Except as contained in this notice, the name of the copyright holder(s)
+ * and author(s) shall not be used in advertising or otherwise to promote
+ * the sale, use or other dealings in this Software without prior written
+ * authorization from the copyright holder(s) and author(s).
+ */
+
+/*
+ * This file contains the interfaces to the bus-specific code
+ */
+
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#endif
+
+#include <ctype.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <X11/X.h>
+#include "os.h"
+#include "xf86.h"
+#include "xf86Priv.h"
+
+/* Bus-specific headers */
+
+#include "xf86Bus.h"
+
+#define XF86_OS_PRIVS
+#include "xf86_OSproc.h"
+#include "xf86VGAarbiter.h"
+
+#include "Pci.h"
+
+/* Entity data */
+EntityPtr *xf86Entities = NULL; /* Bus slots claimed by drivers */
+int xf86NumEntities = 0;
+static int xf86EntityPrivateCount = 0;
+
+BusRec primaryBus = { BUS_NONE, { 0 } };
+
+static Bool xf86ResAccessEnter = FALSE;
+
+static Bool doFramebufferMode = FALSE;
+
+/*
+ * Call the bus probes relevant to the architecture.
+ *
+ * The only one available so far is for PCI and SBUS.
+ */
+
+void
+xf86BusProbe(void)
+{
+ xf86PciProbe();
+#if (defined(__sparc__) || defined(__sparc)) && !defined(__OpenBSD__)
+ xf86SbusProbe();
+#endif
+}
+
+/*
+ * Determine what bus type the busID string represents. The start of the
+ * bus-dependent part of the string is returned as retID.
+ */
+
+BusType
+StringToBusType(const char* busID, const char **retID)
+{
+ char *p, *s;
+ BusType ret = BUS_NONE;
+
+ /* If no type field, Default to PCI */
+ if (isdigit(busID[0])) {
+ if (retID)
+ *retID = busID;
+ return BUS_PCI;
+ }
+
+ s = xstrdup(busID);
+ p = strtok(s, ":");
+ if (p == NULL || *p == 0) {
+ free(s);
+ return BUS_NONE;
+ }
+ if (!xf86NameCmp(p, "pci") || !xf86NameCmp(p, "agp"))
+ ret = BUS_PCI;
+ if (!xf86NameCmp(p, "sbus"))
+ ret = BUS_SBUS;
+ if (ret != BUS_NONE)
+ if (retID)
+ *retID = busID + strlen(p) + 1;
+ free(s);
+ return ret;
+}
+
+/*
+ * Entity related code.
+ */
+
+void
+xf86EntityInit(void)
+{
+ int i;
+
+ for (i = 0; i < xf86NumEntities; i++)
+ if (xf86Entities[i]->entityInit) {
+ xf86Entities[i]->entityInit(i,xf86Entities[i]->private);
+ }
+}
+
+int
+xf86AllocateEntity(void)
+{
+ xf86NumEntities++;
+ xf86Entities = xnfrealloc(xf86Entities,
+ sizeof(EntityPtr) * xf86NumEntities);
+ xf86Entities[xf86NumEntities - 1] = xnfcalloc(1,sizeof(EntityRec));
+ xf86Entities[xf86NumEntities - 1]->entityPrivates =
+ xnfcalloc(sizeof(DevUnion) * xf86EntityPrivateCount, 1);
+ return (xf86NumEntities - 1);
+}
+
+static void
+EntityEnter(void)
+{
+ int i;
+
+ for (i = 0; i < xf86NumEntities; i++)
+ if (xf86Entities[i]->entityEnter) {
+ xf86Entities[i]->entityEnter(i,xf86Entities[i]->private);
+ }
+}
+
+static void
+EntityLeave(void)
+{
+ int i;
+
+ for (i = 0; i < xf86NumEntities; i++)
+ if (xf86Entities[i]->entityLeave) {
+ xf86Entities[i]->entityLeave(i,xf86Entities[i]->private);
+ }
+}
+
+Bool
+xf86IsEntityPrimary(int entityIndex)
+{
+ EntityPtr pEnt = xf86Entities[entityIndex];
+
+ if (primaryBus.type != pEnt->bus.type) return FALSE;
+
+ switch (pEnt->bus.type) {
+ case BUS_PCI:
+ return (pEnt->bus.id.pci == primaryBus.id.pci);
+ case BUS_SBUS:
+ return (pEnt->bus.id.sbus.fbNum == primaryBus.id.sbus.fbNum);
+ default:
+ return FALSE;
+ }
+}
+
+Bool
+xf86SetEntityFuncs(int entityIndex, EntityProc init, EntityProc enter,
+ EntityProc leave, pointer private)
+{
+ if (entityIndex >= xf86NumEntities)
+ return FALSE;
+ xf86Entities[entityIndex]->entityInit = init;
+ xf86Entities[entityIndex]->entityEnter = enter;
+ xf86Entities[entityIndex]->entityLeave = leave;
+ xf86Entities[entityIndex]->private = private;
+ return TRUE;
+}
+
+Bool
+xf86DriverHasEntities(DriverPtr drvp)
+{
+ int i;
+ for (i = 0; i < xf86NumEntities; i++) {
+ if (xf86Entities[i]->driver == drvp)
+ return TRUE;
+ }
+ return FALSE;
+}
+
+void
+xf86AddEntityToScreen(ScrnInfoPtr pScrn, int entityIndex)
+{
+ if (entityIndex == -1)
+ return;
+ if (xf86Entities[entityIndex]->inUse &&
+ !(xf86Entities[entityIndex]->entityProp & IS_SHARED_ACCEL)) {
+ ErrorF("Requested Entity already in use!\n");
+ return;
+ }
+
+ pScrn->numEntities++;
+ pScrn->entityList = xnfrealloc(pScrn->entityList,
+ pScrn->numEntities * sizeof(int));
+ pScrn->entityList[pScrn->numEntities - 1] = entityIndex;
+ xf86Entities[entityIndex]->inUse = TRUE;
+ pScrn->entityInstanceList = xnfrealloc(pScrn->entityInstanceList,
+ pScrn->numEntities * sizeof(int));
+ pScrn->entityInstanceList[pScrn->numEntities - 1] = 0;
+ pScrn->domainIOBase = xf86Entities[entityIndex]->domainIO;
+}
+
+void
+xf86SetEntityInstanceForScreen(ScrnInfoPtr pScrn, int entityIndex, int instance)
+{
+ int i;
+
+ if (entityIndex == -1 || entityIndex >= xf86NumEntities)
+ return;
+
+ for (i = 0; i < pScrn->numEntities; i++) {
+ if (pScrn->entityList[i] == entityIndex) {
+ pScrn->entityInstanceList[i] = instance;
+ break;
+ }
+ }
+}
+
+/*
+ * XXX This needs to be updated for the case where a single entity may have
+ * instances associated with more than one screen.
+ */
+ScrnInfoPtr
+xf86FindScreenForEntity(int entityIndex)
+{
+ int i,j;
+
+ if (entityIndex == -1) return NULL;
+
+ if (xf86Screens) {
+ for (i = 0; i < xf86NumScreens; i++) {
+ for (j = 0; j < xf86Screens[i]->numEntities; j++) {
+ if ( xf86Screens[i]->entityList[j] == entityIndex )
+ return (xf86Screens[i]);
+ }
+ }
+ }
+ return NULL;
+}
+
+void
+xf86RemoveEntityFromScreen(ScrnInfoPtr pScrn, int entityIndex)
+{
+ int i;
+
+ for (i = 0; i < pScrn->numEntities; i++) {
+ if (pScrn->entityList[i] == entityIndex) {
+ for (i++; i < pScrn->numEntities; i++)
+ pScrn->entityList[i-1] = pScrn->entityList[i];
+ pScrn->numEntities--;
+ xf86Entities[entityIndex]->inUse = FALSE;
+ break;
+ }
+ }
+}
+
+/*
+ * xf86ClearEntitiesForScreen() - called when a screen is deleted
+ * to mark it's entities unused. Called by xf86DeleteScreen().
+ */
+void
+xf86ClearEntityListForScreen(int scrnIndex)
+{
+ ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
+ int i, entityIndex;
+
+ if (pScrn->entityList == NULL || pScrn->numEntities == 0) return;
+
+ for (i = 0; i < pScrn->numEntities; i++) {
+ entityIndex = pScrn->entityList[i];
+ xf86Entities[entityIndex]->inUse = FALSE;
+ /* disable resource: call the disable function */
+ }
+ free(pScrn->entityList);
+ free(pScrn->entityInstanceList);
+ pScrn->entityList = NULL;
+ pScrn->entityInstanceList = NULL;
+}
+
+/*
+ * Add an extra device section (GDevPtr) to an entity.
+ */
+
+void
+xf86AddDevToEntity(int entityIndex, GDevPtr dev)
+{
+ EntityPtr pEnt;
+
+ if (entityIndex >= xf86NumEntities)
+ return;
+
+ pEnt = xf86Entities[entityIndex];
+ pEnt->numInstances++;
+ pEnt->devices = xnfrealloc(pEnt->devices,
+ pEnt->numInstances * sizeof(GDevPtr));
+ pEnt->devices[pEnt->numInstances - 1] = dev;
+ dev->claimed = TRUE;
+}
+
+/*
+ * xf86GetEntityInfo() -- This function hands information from the
+ * EntityRec struct to the drivers. The EntityRec structure itself
+ * remains invisible to the driver.
+ */
+EntityInfoPtr
+xf86GetEntityInfo(int entityIndex)
+{
+ EntityInfoPtr pEnt;
+ int i;
+
+ if (entityIndex == -1)
+ return NULL;
+
+ if (entityIndex >= xf86NumEntities)
+ return NULL;
+
+ pEnt = xnfcalloc(1,sizeof(EntityInfoRec));
+ pEnt->index = entityIndex;
+ pEnt->location = xf86Entities[entityIndex]->bus;
+ pEnt->active = xf86Entities[entityIndex]->active;
+ pEnt->chipset = xf86Entities[entityIndex]->chipset;
+ pEnt->driver = xf86Entities[entityIndex]->driver;
+ if ( (xf86Entities[entityIndex]->devices) &&
+ (xf86Entities[entityIndex]->devices[0]) ) {
+ for (i = 0; i < xf86Entities[entityIndex]->numInstances; i++)
+ if (xf86Entities[entityIndex]->devices[i]->screen == 0)
+ break;
+ pEnt->device = xf86Entities[entityIndex]->devices[i];
+ } else
+ pEnt->device = NULL;
+
+ return pEnt;
+}
+
+int
+xf86GetNumEntityInstances(int entityIndex)
+{
+ if (entityIndex >= xf86NumEntities)
+ return -1;
+
+ return xf86Entities[entityIndex]->numInstances;
+}
+
+GDevPtr
+xf86GetDevFromEntity(int entityIndex, int instance)
+{
+ int i;
+
+ /* We might not use AddDevtoEntity */
+ if ( (!xf86Entities[entityIndex]->devices) ||
+ (!xf86Entities[entityIndex]->devices[0]) )
+ return NULL;
+
+ if (entityIndex >= xf86NumEntities ||
+ instance >= xf86Entities[entityIndex]->numInstances)
+ return NULL;
+
+ for (i = 0; i < xf86Entities[entityIndex]->numInstances; i++)
+ if (xf86Entities[entityIndex]->devices[i]->screen == instance)
+ break;
+ return xf86Entities[entityIndex]->devices[i];
+}
+
+/*
+ * xf86AccessInit() - set up everything needed for access control
+ * called only once on first server generation.
+ */
+void
+xf86AccessInit(void)
+{
+ xf86ResAccessEnter = TRUE;
+}
+
+/*
+ * xf86AccessEnter() -- gets called to save the text mode VGA IO
+ * resources when reentering the server after a VT switch.
+ */
+void
+xf86AccessEnter(void)
+{
+ if (xf86ResAccessEnter)
+ return;
+
+ /*
+ * on enter we simply disable routing of special resources
+ * to any bus and let the RAC code to "open" the right bridges.
+ */
+ EntityEnter();
+ xf86EnterServerState(SETUP);
+ xf86ResAccessEnter = TRUE;
+}
+
+/*
+ * xf86AccessLeave() -- prepares access for and calls the
+ * entityLeave() functions.
+ * xf86AccessLeaveState() --- gets called to restore the
+ * access to the VGA IO resources when switching VT or on
+ * server exit.
+ * This was split to call xf86AccessLeaveState() from
+ * ddxGiveUp().
+ */
+void
+xf86AccessLeave(void)
+{
+ if (!xf86ResAccessEnter)
+ return;
+ EntityLeave();
+}
+
+/*
+ * xf86EnableAccess() -- enable access to controlled resources.
+ * To reduce latency when switching access the ScrnInfoRec has
+ * a linked list of the EntityAccPtr of all screen entities.
+ */
+/*
+ * switching access needs to be done in te following oder:
+ * disable
+ * 1. disable old entity
+ * 2. reroute bus
+ * 3. enable new entity
+ * Otherwise resources needed for access control might be shadowed
+ * by other resources!
+ */
+
+void
+xf86EnableAccess(ScrnInfoPtr pScrn)
+{
+ DebugF("Enable access %i\n",pScrn->scrnIndex);
+
+ return;
+}
+
+/*
+ * xf86EnterServerState() -- set state the server is in.
+ */
+
+typedef enum { TRI_UNSET, TRI_TRUE, TRI_FALSE } TriState;
+
+static void
+SetSIGIOForState(xf86State state)
+{
+ static int sigio_state;
+ static TriState sigio_blocked = TRI_UNSET;
+
+ if ((state == SETUP) && (sigio_blocked != TRI_TRUE)) {
+ sigio_state = xf86BlockSIGIO();
+ sigio_blocked = TRI_TRUE;
+ } else if ((state == OPERATING) && (sigio_blocked != TRI_UNSET)) {
+ xf86UnblockSIGIO(sigio_state);
+ sigio_blocked = TRI_FALSE;
+ }
+}
+
+void
+xf86EnterServerState(xf86State state)
+{
+ /*
+ * This is a good place to block SIGIO during SETUP state.
+ * SIGIO should be blocked in SETUP state otherwise (u)sleep()
+ * might get interrupted early.
+ * We take care not to call xf86BlockSIGIO() twice.
+ */
+ SetSIGIOForState(state);
+ if (state == SETUP)
+ DebugF("Entering SETUP state\n");
+ else
+ DebugF("Entering OPERATING state\n");
+
+ return;
+}
+
+/*
+ * xf86PostProbe() -- Allocate all non conflicting resources
+ * This function gets called by xf86Init().
+ */
+void
+xf86PostProbe(void)
+{
+ if (fbSlotClaimed) {
+ if (pciSlotClaimed
+#if (defined(__sparc__) || defined(__sparc)) && !defined(__OpenBSD__)
+ || sbusSlotClaimed
+#endif
+ ) {
+ FatalError("Cannot run in framebuffer mode. Please specify busIDs "
+ " for all framebuffer devices\n");
+ return;
+ } else {
+ xf86Msg(X_INFO,"Running in FRAMEBUFFER Mode\n");
+ doFramebufferMode = TRUE;
+
+ return;
+ }
+ }
+}
+
+void
+xf86PostScreenInit(void)
+{
+ if (doFramebufferMode) {
+ SetSIGIOForState(OPERATING);
+ return;
+ }
+
+ xf86VGAarbiterWrapFunctions();
+
+ DebugF("PostScreenInit generation: %i\n",serverGeneration);
+ xf86EnterServerState(OPERATING);
+}
+
+/*
+ * xf86FindPrimaryDevice() - Find the display device which
+ * was active when the server was started.
+ */
+void
+xf86FindPrimaryDevice(void)
+{
+ if (primaryBus.type != BUS_NONE) {
+ char *bus;
+ char loc[16];
+
+ switch (primaryBus.type) {
+ case BUS_PCI:
+ bus = "PCI";
+ snprintf(loc, sizeof(loc), " %2.2x@%2.2x:%2.2x:%1.1x",
+ primaryBus.id.pci->bus,
+ primaryBus.id.pci->domain,
+ primaryBus.id.pci->dev,
+ primaryBus.id.pci->func);
+ break;
+ case BUS_SBUS:
+ bus = "SBUS";
+ snprintf(loc, sizeof(loc), " %2.2x", primaryBus.id.sbus.fbNum);
+ break;
+ default:
+ bus = "";
+ loc[0] = '\0';
+ }
+
+ xf86MsgVerb(X_INFO, 2, "Primary Device is: %s%s\n",bus,loc);
+ }
+}
+
+int
+xf86GetLastScrnFlag(int entityIndex)
+{
+ if(entityIndex < xf86NumEntities) {
+ return(xf86Entities[entityIndex]->lastScrnFlag);
+ } else {
+ return -1;
+ }
+}
+
+void
+xf86SetLastScrnFlag(int entityIndex, int scrnIndex)
+{
+ if(entityIndex < xf86NumEntities) {
+ xf86Entities[entityIndex]->lastScrnFlag = scrnIndex;
+ }
+}
+
+Bool
+xf86IsEntityShared(int entityIndex)
+{
+ if(entityIndex < xf86NumEntities) {
+ if(xf86Entities[entityIndex]->entityProp & IS_SHARED_ACCEL) {
+ return TRUE;
+ }
+ }
+ return FALSE;
+}
+
+void
+xf86SetEntityShared(int entityIndex)
+{
+ if(entityIndex < xf86NumEntities) {
+ xf86Entities[entityIndex]->entityProp |= IS_SHARED_ACCEL;
+ }
+}
+
+Bool
+xf86IsEntitySharable(int entityIndex)
+{
+ if(entityIndex < xf86NumEntities) {
+ if(xf86Entities[entityIndex]->entityProp & ACCEL_IS_SHARABLE) {
+ return TRUE;
+ }
+ }
+ return FALSE;
+}
+
+void
+xf86SetEntitySharable(int entityIndex)
+{
+ if(entityIndex < xf86NumEntities) {
+ xf86Entities[entityIndex]->entityProp |= ACCEL_IS_SHARABLE;
+ }
+}
+
+Bool
+xf86IsPrimInitDone(int entityIndex)
+{
+ if(entityIndex < xf86NumEntities) {
+ if(xf86Entities[entityIndex]->entityProp & SA_PRIM_INIT_DONE) {
+ return TRUE;
+ }
+ }
+ return FALSE;
+}
+
+void
+xf86SetPrimInitDone(int entityIndex)
+{
+ if(entityIndex < xf86NumEntities) {
+ xf86Entities[entityIndex]->entityProp |= SA_PRIM_INIT_DONE;
+ }
+}
+
+void
+xf86ClearPrimInitDone(int entityIndex)
+{
+ if(entityIndex < xf86NumEntities) {
+ xf86Entities[entityIndex]->entityProp &= ~SA_PRIM_INIT_DONE;
+ }
+}
+
+
+/*
+ * Allocate a private in the entities.
+ */
+
+int
+xf86AllocateEntityPrivateIndex(void)
+{
+ int idx, i;
+ EntityPtr pEnt;
+ DevUnion *nprivs;
+
+ idx = xf86EntityPrivateCount++;
+ for (i = 0; i < xf86NumEntities; i++) {
+ pEnt = xf86Entities[i];
+ nprivs = xnfrealloc(pEnt->entityPrivates,
+ xf86EntityPrivateCount * sizeof(DevUnion));
+ /* Zero the new private */
+ bzero(&nprivs[idx], sizeof(DevUnion));
+ pEnt->entityPrivates = nprivs;
+ }
+ return idx;
+}
+
+DevUnion *
+xf86GetEntityPrivate(int entityIndex, int privIndex)
+{
+ if (entityIndex >= xf86NumEntities || privIndex >= xf86EntityPrivateCount)
+ return NULL;
+
+ return &(xf86Entities[entityIndex]->entityPrivates[privIndex]);
+}
+
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